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Finding the Fourth Proportional to 29.66, 44.49 and 9.10

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Solution

The fourth proportional to 29.66, 44.49 and 9.10 is: 13.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.66 : 44.49 = 9.10 : x
  2. Step 2: Convert to fraction form
    29.66/44.49 = 9.10/x
  3. Step 3: Cross multiply
    29.66x = 44.49 × 9.10
  4. Step 4: Simplify right side
    29.66x = 404.70
  5. Step 5: Solve for x
    x = 404.70/29.66
  6. Step 6: Final answer
    x = 13.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.